A pilonidal sinus is a small hole or tunnel in the skin. It may fill with fluid or pus, causing the formation of a cyst or abscess. It occurs in the cleft at the top of the buttocks ( in between the buttocks). A pilonidal cyst usually contains hair, dirt, and debris. It can cause severe pain and can often become infected. If it becomes infected, it may ooze pus and blood and have a foul odor. It is a condition that mostly affects men and is also common in young adults. It’s also more common in people who sit a lot, like cab drivers. It’s a recurrent problem so it can cause problems if not treated adequately.
If you have a recurring PNS or if you have more than one sinus tract, your doctor will recommend a surgical procedure. You will first be given anesthesia (local or spinal, depending on the plan of treatment). Then, the surgeon will open the lesions, removing all of the pus and debris. Once the debridement is complete, the surgeon will stitch the wounds closed or if flap coverage is given. After surgery, your doctor will explain how to change the dressings and will recommend shaving the site to prevent hair from growing into the wound.